[PATCH v2 1/2] dt-bindings: dma: nuvoton,ma35d1-pdma: Document MA35D1 PDMA controller

[Shan-Chun Hung <shanchun1218@gmail.com>]

Add binding for Nuvoton MA35D1 PDMA controller.

Signed-off-by: Shan-Chun Hung <shanchun1218@gmail.com>
---
 .../bindings/dma/nuvoton,ma35d1-pdma.yaml     | 71 +++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/nuvoton,ma35d1-pdma.yaml

diff --git a/Documentation/devicetree/bindings/dma/nuvoton,ma35d1-pdma.yaml b/Documentation/devicetree/bindings/dma/nuvoton,ma35d1-pdma.yaml
new file mode 100644
index 000000000000..d05971662a5d
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/nuvoton,ma35d1-pdma.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/nuvoton,ma35d1-pdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton MA35D1 PDMA controller
+
+description:
+  The MA35D1 SoC has four Peripheral DMA (PDMA) controllers. Each controller
+  has 10 channels and performs memory-to-memory, memory-to-peripheral and
+  peripheral-to-memory transfers.
+
+maintainers:
+  - Shan-Chun Hung <shanchun1218@gmail.com>
+
+allOf:
+  - $ref: dma-controller.yaml#
+
+properties:
+  compatible:
+    const: nuvoton,ma35d1-pdma
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  "#dma-cells":
+    const: 2
+    description:
+      The first cell is the PDMA channel number. The second cell is the
+      peripheral request source number, as listed in the reference manual.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupts
+  - "#dma-cells"
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/nuvoton,ma35d1-clk.h>
+    #include <dt-bindings/reset/nuvoton,ma35d1-reset.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        dma-controller@40080000 {
+            compatible = "nuvoton,ma35d1-pdma";
+            reg = <0x0 0x40080000 0x0 0x2000>;
+            interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&clk PDMA0_GATE>;
+            resets = <&sys MA35D1_RESET_PDMA0>;
+            #dma-cells = <2>;
+        };
+    };
+
+...
-- 
2.25.1